graphql/graphql-js

merge ast trees

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#1,428 建立於 2018年7月21日

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 (9 留言) (4 反應) (0 負責人)TypeScript (19,825 star) (2,223 fork)batch import
help wantedproposal

描述

Feature request

Another feature that is extremely useful and utils are lacking it: merging ast trees.

Primary use case: merging two queries (selections) to dynamically construct queries. There are plenty of cases where it is needed, mainly in libraries and in cases of graphql to graphql communication.

PS It would be great if somebody can say how to do this properly now (simple deep merge doesn't wotk properly)

貢獻者指南

技術棧
typescript
領域
apibackend
議題類型
feature
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
4
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
3-5 days
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
GraphQL conceptsAST traversal knowledge
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
35
研究方向
Review the existing AST utilities in graphql js, particularly in src/utilities/ directory, to understand current functions like concatAST. Examine the issue comments for prior discussions and attempts. Develop a deep merge algorithm for AST nodes, handling selection sets, fragments, and directives while preserving unique fields and avoiding duplicates.